Given the function f(x)=2x-4)^2-6 calculate the rate of change over the interval -3≤x≤5

Idon’t understand this.. will someone ? will mark brainliest along with 20 points.

The scale for a map is 20 miles = 1/2 inch. the distance between two towns on the map is 3 3/4 inches. what is the actual distance between these towns? 150 miles 38 miles 75 miles 135 miles

You have 17 cats that live in houses on your street, 24 dogs, 3 fish, and 4 hamsters. what percent of animals on your block are dogs?